US Bridges

Front Street over Salmon Falls River

Fair

Strafford County, New Hampshire · Me.-Nh State Line · Structure no. 022301080009800

Built
1962
63 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
156 ft
2 main spans
Daily traffic
2,049
2023 count
Owner
State
State Highway Agency

About this bridge

Front Street over Salmon Falls River is a steel stringer/multi-beam or girder carrying Front Street over Salmon Falls River in Strafford County, New Hampshire. It was built in 1962, so it is 63 years old, older than the New Hampshire average of 56.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,049 vehicles a day, roughly 5% of them trucks, projected to reach 3,032 by 2043. The structure is 156 ft (47.5 m) long and 37 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFront Street
CrossesSalmon Falls River
LocationMe.-Nh State Line
RouteState Highway 0
Coordinates43.23715, -70.81749
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.3 US tons
Inventory rating23 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length156 ft (47.5 m)
Longest span75 ft (22.9 m)
Deck width37 ft (11.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,049 (2023)
Projected traffic3,032 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$314,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Front Street over Salmon Falls River built?

It was built in 1962, making it 63 years old in 2025.

What condition is Front Street over Salmon Falls River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2023.

How much traffic does Front Street over Salmon Falls River carry?

About 2,049 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Front Street over Salmon Falls River?

The structure is 156 ft (47.5 m) long with a longest span of 75 ft (22.9 m) and a deck 37 ft wide.

Who owns Front Street over Salmon Falls River?

It is owned by the State Highway Agency.